Regensburg 2007 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Downloads | Hilfe
TT: Fachverband Tiefe Temperaturen
TT 8: Superconductivity - Poster Session
TT 8.38: Poster
Montag, 26. März 2007, 14:00–17:45, Poster A
Characterization of 3-dimensional superconductive thin film components for gravitational experiments in space. — •Stefan Hechler1, Ronny Nawrodt1, Sandor Nietzsche1, Wolfgang Vodel1, Hansjörg Dittus2, Frank Löffler3, and Paul Seidel1 — 1Friedrich-Schiller-Universität Jena, Institut für Festkörperphysik, Helmholtzweg 5, 07743 Jena, Germany — 2ZARM, Universität Bremen, Am Fallturm, 28359 Bremen, Germany — 3Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany
Superconducting Quantum Interference Devices (SQUIDs) are used for high precise gravitational experiments. One of the most impressive experiments is the Satellite Test of the Equivalence Principle (STEP) of NASA/ESA. The STEP mission aims to prove a possible violation of Einstein’s Equivalence Principle at an extreme level of accuracy of 1 part in 1018 in space.
In this contribution we present an automatically working measurement equipment to characterize 3-dimensional superconducting thin film components like i.e. pick-up coils and test masses for STEP. The characterization is done by measurements of the transition temperature between the normal and the superconducting state using a special built anti-cryostat. Above all the setup was designed for use in normal LHe transport Dewars. The sample chamber has a volume of 150 cm3 and can be fully temperature controlled over a range from 4.2 K to 300 K with a resolution of better then 100 mK.
This work was supported by German DLR, contract 50 OY 0501.